Oxygen storage material, process for its preparation and its application in a catalyst
An oxygen storage material comprising cerium oxide and at least one second oxide of a metal M 1 is disclosed as well as a process for manufacturing the material and the use of this material in an exhaust gas cleaning catalyst. In a preferred embodiment the oxygen storage material comprises particles...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | An oxygen storage material comprising cerium oxide and at least one second oxide of a metal M
1
is disclosed as well as a process for manufacturing the material and the use of this material in an exhaust gas cleaning catalyst. In a preferred embodiment the oxygen storage material comprises particles from a Ce/M
1
mixed oxide solid solution coated with an oxide of another metal M
2
. Metal M
1
e.g. can be calcium or zirconium while metal M
2
most preferably is aluminum. |
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